When boomer heard the car pull into the driveway, he bounded off the couch and wagged his tail excitedly. the front door opened, and boomer leaped onto eddie, licking his face and knocking him over onto his suitcase.

you can infer that boomer

a
knows eddie has a treat for him.
b
is glad that eddie is back from a trip.
c
is always this happy when eddie returns.
d
is upset that eddie went away without him.